Home / 19,890.25-27,441.71-12,333.86

Finding the Fourth Proportional to 19,890.25, 27,441.71 and 12,333.86

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Solution

The fourth proportional to 19,890.25, 27,441.71 and 12,333.86 is: 17,016.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,890.25 : 27,441.71 = 12,333.86 : x
  2. Step 2: Convert to fraction form
    19,890.25/27,441.71 = 12,333.86/x
  3. Step 3: Cross multiply
    19,890.25x = 27,441.71 × 12,333.86
  4. Step 4: Simplify right side
    19,890.25x = 338,462,209.30
  5. Step 5: Solve for x
    x = 338,462,209.30/19,890.25
  6. Step 6: Final answer
    x = 17,016.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.